ABSTRACT
The Environmental Protection Agency is responsible for evaluating the suitability of hazardous waste and materials for land disposal. Chemical stabilization/solidification is one technique that has been proposed as a means for controlling the release of contaminants from landfilled wastes to surface and ground waters. The study was conducted in three phases: preparation of a synthetic wastewater and sludge; addition of a binder and interfering material to the sludge; and uncon-fined compressive strength testing of cured specimens containing sludge, binder, and interference chemicals. A constant moisture content between sludge batches was maintained by adjusting the solids content of the dewatered sludge to 25 %, using the supernatant liquid from the sludge production process as a dilution liquid. A single organic interfering substance was added to each of the subsamples at ratios of 0.0, 0.02,0.05, and 0.08 (by weight) interference chemical to binder/sludge material.
